CN2365572Y

CN2365572Y - Smokeless coal energy-saving boiler without chimney

Info

Publication number: CN2365572Y
Application number: CN 99227198
Authority: CN
Inventors: 陈建华
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-01-28
Filing date: 1999-01-28
Publication date: 2000-02-23
Anticipated expiration: 2009-01-28

Abstract

The utility model relates to a smokeless coal energy-saving boiler without a chimney, belonging to the technical field of a coal-fuelling boiler. The utility model mainly solves the problem that a common boiler is provided with a large chimney. A coal economizer of the utility model is installed at the upper part of the boiler body, and a fume exhaust tube is straightly extended from the top of the coal economizer to a tapered hood of a lower boiler chamber. The coal economizer can be used for sufficiently using the waste heat, the large-sized boiler chamber and the fume exhaust tube can be used for realizing sufficient combustion of low thermal value fuels, a large chimney which can affect the townscape is eliminated, and the pollution is reduced.

Description

Anthracite does not have the chimney power economized boiler

The utility model belongs to the coal-burning boiler technical field.

Known to the applicant, the domestic hot water boiler mostly is to use bituminous coal to act as a fuel at present.This makes boiler that a smokestack must be arranged, and has both influenced the appearance of the city, pollutes again.

The purpose of this utility model will overcome above shortcoming exactly, does not need smokestack, also can use fuel such as anthracite, firewood, and reduces and pollute.

The utility model is design like this, on boiler body top, economizer is installed.A smoke exhaust pipe.Extend the cone-shaped hood of burner hearth from the economizer top always down, simultaneously, strengthen size of burner hearth, upright bassoon, cone-shaped hood and smoke exhaust pipe are housed in it.

Like this, make low calorie fuels such as anthracite, firewood, also can fully burn.Flame and flue gas, abundant with the boiler inner wall contact area, flue gas is passed to after-heat in the economizer behind the cold water through the economizer smoke exhaust pipe, discharges.And after cold water enters from economizer top water inlet pipe,, enter boiler body again through the preheating of cigarette device, and continue to be heated to form hot water and steam, use for the user through defeated pipe of steam and hot water valve discharge.

Advantage of the present utility model is to have realized no smokestack, makes full use of low calorie fuels such as anthracite, firewood, and is easy to use, reduces cost, and good looking appearance reduces and pollutes.

Below, the utility model is described in further detail in conjunction with the accompanying drawings.

Fig. 1 is the utility model structure and operation principle schematic diagram.

Among the figure:

1. body of heater 2. burner hearths 3. found fire tube 4. cone-shaped hoods 5. water level meters 6. middle tank 7. smoke exhaust pipes 8. explosion stacks 9. body water inlet pipes 10. economizer cylindrical shells 11. economizer water gages 12. economizer outlet pipes 13. thermometers 14. water inlet pipes 15. economizer smoke exhaust pipes 16. Pressure gauges 17. steam delivery valves 18. snifting valves 19. hot water valve 20. square fire door 21. sewage draining exits

Fuel (anthracite or firewood) enters burner hearth 2 from the square fire door of opening 20, and burning therein.Size of burner hearth is bigger than general coal-burning boiler, is easy to make low calorie fuels fully to burn, and flame and flue gas are collected by cone-shaped hood 4 by upright fire tube 3, enter smoke exhaust pipe 7.In this process, the water in the boiler body is fully heated.Flue gas continues to rise, and enters the economizer smoke exhaust pipe 15 that directly communicates with body smoke exhaust pipe 7, and wherein waste heat discharges cold water preheating in the economizer cylindrical shell 10 then.The heat that fuel sends is fully utilized.

Water injects from the water inlet pipe 14 on economizer cylindrical shell 10 tops, after 15 heating of economizer smoke exhaust pipe, through economizer outlet pipe 12, enter boiler body water inlet pipe 9, tank 6 in the middle of injecting, water overflows from groove, enter in the body of heater 1, preheating has the water of uniform temperature in economizer cylindrical shell 10, is further heated into hot water and steam, supplies with outside the use by hot water valve 19 and steam delivery valve 17.

In addition, also have boiler Common Instrument and safety attachments such as water level meter 5, thermometer 13, Pressure gauge 16, snifting valve 18, sewage draining exit 21, explosion stack 8 on the utility model.

Claims

1, anthracite does not have the chimney power economized boiler, it is characterized in that: on boiler body top, economizer is installed, a smoke exhaust pipe extends the burner hearth cone-shaped hood down always from the economizer top; Size of burner hearth is bigger, is connected with upright bassoon, cone-shaped hood and smoke exhaust pipe on it.